PRODUCTION OF FISH REEF FOR SPINY LOBSTER UTILIZING SUPER STIFF-CONSISTENCY CONCRETE

摘要

PURPOSE:To obtain the subject fish reef according to simple operation by filling a granular substance having a prescribed grain size as a forming mold material in wooden frames arranged on the inside of the first and the second frame molds, placing a pasty substance containing a granular aggregate, hardening the pasty substance and then removing the granular substance. CONSTITUTION:The first wooden frames 41 for forming openings where spiny lobsters enter are arranged on the inside of the first frame mold 40 and a granular substance 42 having a prescribed grain size is then filled in the aforementioned wooden frames 41. A pasty substance 43 for super stiff-consistency concrete is subsequently placed from the upper part therein. The second frame mold 44 is then placed on the first frame mold 40 and the second wooden frames 45 for forming a support pedestal are selectively arranged in the second frame mold 44. The pasty substance is placed in the second wooden frames and the granular substance 42 is subsequently filled from the upper part. The similar steps are further repeated and the above-mentioned granular substance is removed after hardening the pasty substance. Thereby, the objective fish reef for spiny lobsters is obtained.